Investigation of fuel ethanol preparation by extractive distillation using a deep eutectic solvent as an extractor
Wang Shubo1, Ma Shangwen1, Feng Shubo2, 1, Feng Danhua2
1. College of Petrochemical Engineering, Bayin Guoleng Vocational College, Kuerle 841000, China; 2. College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Synthesis of deep eutectic solvent(DES) composed of ethylene glycol and choline chloride was studied. The effect of the ethylene glycol choline chloride DES and ethylene glycol extractor on the preparation of fuel ethanol was compared. The effect of extractor amount and reflux ratio of distillation column on ethanol purity in the distillate was investigated respectively. Results indicate when ethanol waten azectrope is used as raw material, ethanol concentration in the column distillate using the deep eutectic solvent is 1.5%~2.6% higher than using ethylene glycol. In addition, higher boiling point of the DES can guarantee an economical and green process, the use of toxic ethylene glycol will be avoided and total energy consumption will be decreased considerably.
王淑波1,马尚文1,冯树波2, 1,冯丹华2. 乙二醇-氯化胆碱低共熔溶剂萃取精馏制取燃料乙醇的研究[J]. 煤炭与化工, 2019, 42(10): 129-132.
Wang Shubo1, Ma Shangwen1, Feng Shubo2, 1, Feng Danhua2. Investigation of fuel ethanol preparation by extractive distillation using a deep eutectic solvent as an extractor. CCI, 2019, 42(10): 129-132.